Stage 5 click-testing fixes

- Fix link_to :method → button_to for all PUT/DELETE actions
- Add button_to CSS reset to admin.css for visual consistency
- Fix admin layout: replace broken jquery/jquery_ujs pipeline refs with
  admin_bundle via sprockets; add sprockets-rails, jquery-ui-rails gems
- Add app/assets/javascripts/admin_bundle.js pipeline manifest
- Fix event_information helper: use safe_join to avoid double-escaping
- Fix nodes_helper: to_s(:db) → to_fs(:db) for event times
- Fix revisions view: eliminate nested forms; diff button uses vanilla JS
  to collect radio button values before POST
- Fix config/environments/development.rb and test.rb: cache_classes →
  enable_reloading
- Add routing_filter_rails71_patch.rb version guard
- Move LockedByAnotherUser to own file for Zeitwerk autoloading
- Fix Globalize fallbacks via config.i18n.fallbacks in application.rb

1 files changed, 3 insertions, 6 deletions

diff --git a/app/views/users/_user.html.erb b/app/views/users/_user.html.erb
index 9987e31..ddb7afd 100644
--- a/app/views/users/_user.html.erb
+++ b/app/views/users/_user.html.erb
@@ -7,12 +7,9 @@
     <%= link_to "edit", edit_user_path(user) %>
   </td>
   <td>
-    <%= link_to(
-          "destroy",
-          user_path(user),
-          :method => :delete,
-          :data => { :confirm => "Do you really want to delete user #{user.login}?" }
-        ) %>
+    <%= button_to "destroy", user_path(user),
+          method: :delete,
+          form: { data: { confirm: "Do you really want to delete user #{user.login}?" } } %>
   </td>
   <% end %>
 </tr>